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Help CenterPrepainted Galvanized Steel Coil for Automotive Parts and Home Appliance Manufacturing
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. — a trusted manufacturer and exporter of high-quality prepainted galvanized steel coils. Since our establishment in 2025, we have rapidly grown to serve global markets with an annual export value exceeding US$50 million. Our dedicated team of 51-100 professionals ensures every coil meets the rigorous demands of automotive parts and home appliance manufacturing. With ISO9001 certification and a strong presence across North America, South America, Europe, Asia, Africa, and Oceania, we are your reliable partner for consistent, cost-effective solutions.
Our Prepainted Galvanized Steel Coil is engineered specifically for the high standards of automotive and home appliance industries. Combining the corrosion resistance of hot-dip galvanized steel with a durable, aesthetically pleasing paint coating, this product offers excellent formability, strong adhesion, and long-lasting color retention. Whether you need complex stamped parts for vehicles or sleek panels for refrigerators and washing machines, our coil delivers the performance you expect.
Key Features & Technical Specifications
- Superior Corrosion Resistance: The galvanized base provides a sacrificial zinc layer, while the prepainted topcoat adds an extra barrier against moisture, chemicals, and UV exposure.
- Excellent Paint Adhesion: Advanced pretreatment and coating processes ensure the paint remains intact during bending, stamping, and deep drawing — critical for automotive and appliance forming.
- Consistent Color & Gloss: Strict quality control maintains uniform color and gloss levels across batches, eliminating the need for rework in final assembly.
- Customizable Dimensions: Thickness from 0.2 mm to 2.0 mm, width from 600 mm to 1500 mm, and coil weight up to 10 tons per coil — all tailored to your specific production needs.
- Eco-Friendly Coatings: Available in polyester, PVDF, SMP, and HDP options, with low-VOC formulations that meet international environmental regulations.
- Reliable Mechanical Properties: Yield strength (180-300 MPa), tensile strength (270-450 MPa), and elongation (≥20%) suitable for both structural and decorative applications.
| Parameter | Typical Value | Remarks |
|---|---|---|
| Base Material | Hot-dip Galvanized Steel | Zinc coating: 40-275 g/m² |
| Coating Type | Polyester, PVDF, SMP, HDP | Customizable based on application |
| Thickness | 0.2 – 2.0 mm | Tolerance ±0.02 mm |
| Width | 600 – 1500 mm | Slit coils available |
| Color | RAL, Pantone, or custom | High gloss, matte, or metallic |
| Application | Automotive parts, home appliances | Also suitable for construction |
Why Choose Our Prepainted Galvanized Steel Coil for Your Manufacturing? In the automotive industry, components such as fuel tanks, brackets, body panels, and interior trim benefit from our coil's excellent drawability and paint adhesion. For home appliance manufacturers, we provide coils that withstand repeated cleaning, high humidity, and temperature variations — perfect for washing machines, refrigerators, air conditioners, and microwave ovens. The cost savings from reduced scrap rates and faster production cycles directly improve your bottom line.
Our production line is equipped with state-of-the-art coating and curing technology, ensuring a uniform paint thickness of 20-30 microns on the top side and 5-10 microns on the reverse side. We also offer additional protective film laminations to prevent surface scratches during handling and forming. Every coil is tested for hardness, flexibility, impact resistance, and salt spray resistance (up to 500 hours in standard conditions) before shipment.
Frequently Asked Questions (FAQ)
Q1: What is the difference between prepainted galvanized steel coil and regular galvanized steel coil?
A: Prepainted coil has an additional organic coating (paint) applied over the galvanized surface, providing enhanced corrosion resistance, color options, and aesthetic appeal. Regular galvanized coil has only a zinc coating and is not painted.
Q2: Can this coil be used for deep drawing in automotive parts?
A: Yes, our prepainted coil is specially formulated with excellent formability. The paint system is designed to withstand deep drawing without cracking or peeling. We recommend requesting a trial for your specific die design.
Q3: What color options are available?
A: We offer a wide range of standard RAL colors, as well as custom color matching based on your Pantone or sample. Minimum order quantity may apply for custom colors.
Q4: How do you ensure the paint adhesion during stamping?
A: We use a multi-stage pretreatment process including degreasing, chemical conversion, and primer coating. The paint is then cured at controlled temperatures to achieve strong adhesion. Our quality control includes T-bend and crosshatch tests.
Q5: What is the minimum order quantity?
A: For standard colors and sizes, the MOQ is 20 tons per coil. For custom colors or special coatings, MOQ may be 50 tons. We can also supply trial samples for evaluation.
Q6: Is your product suitable for outdoor use in home appliances like air conditioners?
A: Absolutely. Our PVDF and HDP coatings offer excellent UV resistance and weatherability, making them ideal for outdoor units. We also provide salt spray test reports upon request.
Q7: How is the coil packaged for export?
A: Each coil is wrapped with moisture-proof paper, polyethylene film, and steel strapping. Outer packaging options include wooden pallets, crates, or steel frames depending on your shipping requirements.
Q8: Do you have ISO9001 certification?
A: Yes, Hemaokang Steel is ISO9001 certified. Our quality management system ensures consistent product quality and traceability from raw materials to final delivery.
As a company with US$50 million – US$100 million annual export value and a team of 51-100 skilled professionals, Hemaokang Steel (Shandong) Co., Ltd. has established a strong reputation in global markets including North America, South America, Europe, Asia, Africa, and Oceania. Our ISO9001 certification, combined with our robust production capacity and strict quality control, ensures that every shipment meets your specifications. We are committed to providing competitive pricing, on-time delivery, and responsive technical support. Contact us today to discuss your requirements for prepainted galvanized steel coil — let us help you manufacture better automotive parts and home appliances.
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